Revert "xhci: Convert to use list_count()"

This reverts commit b47ec972 as it
breaks the build.

Link: https://lore.kernel.org/r/20221130131854.35b58b16@canb.auug.org.au
Link: https://lore.kernel.org/r/202211301628.iwMjPVMp-lkp@intel.com
Cc: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-ring.c

@@ -2532,6 +2532,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 	union xhci_trb *ep_trb;
 	int status = -EINPROGRESS;
 	struct xhci_ep_ctx *ep_ctx;
+	struct list_head *tmp;
 	u32 trb_comp_code;
 	int td_num = 0;
 	bool handling_skipped_tds = false;
@@ -2579,8 +2580,10 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 	}
 
 	/* Count current td numbers if ep->skip is set */
-	if (ep->skip)
-		td_num += list_count(&ep_ring->td_list);
+	if (ep->skip) {
+		list_for_each(tmp, &ep_ring->td_list)
+			td_num++;
+	}
 
 	/* Look for common error cases */
 	switch (trb_comp_code) {